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Combining high strength properties with ease of fabrication, Nickel Alloy 625 and Inconel® 625 is a popular nickel-chromium alloy pipe used in nuclear power production, marine engineering, and aerospace. With the addition of molybdenum and niobium, Nickel Alloy 625 pipe features enhanced strength characteristics. It offers outstanding thermal fatigue strength over a wide range of temperatures ranging from cryogenic to 1800 ºF (982 ºC). Nickel Alloy 625 is also resistant to oxidation as well as other corrosive elements. Nickel Alloy 625 is made with a minimum of 58% Nickel along with 20-23% Cr, 8-10% Mo, and 3.15-4.15% Nb. It also contains a maximum of 5% Fe, 1% Co, 0.50% Si, 0.15% P, and 0.15% S.

Alloy 625 Pipe is available in Seamless or Welded from Size ranges 1/8" up to 26". Listed below are common sizes. Please contact for sizes not listed.
Nickel & Monel® Pipe & Tubes
Unit of Measure
1 2 3 4 

Item #

Item Name

Thickness

Nominal Diameter (Standard)

Nominal Diameter (Metric)

A625-10-250-540 N/A 1/4 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A 0.065 in N/A 1/4 inches N/A 8 mm
A625-40-250-540 N/A 1/4 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.088 in N/A 1/4 inches N/A 8 mm
A625-80-250-540 N/A 1/4 Inch Sch. 80 Alloy 625 Seamless or Welded Pipe N/A 0.119 in N/A 1/4 inches N/A 8 mm
A625-10-10000-10750 N/A 10 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A 0.165 in N/A 10 inches N/A 250 mm
A625-20-10000-10750 N/A 10 Inch Sch. 20 Alloy 625 Seamless or Welded Pipe N/A 0.250 in N/A 10 inches N/A 250 mm
A625-40-10000-10750 N/A 10 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.365 in N/A 10 inches N/A 250 mm
A625-80-10000-10750 N/A 10 Inch Sch. 80 Alloy 625 Seamless or Welded Pipe N/A 0.593 in N/A 10 inches N/A 250 mm
A625-T80-10000-10750 N/A 10 Inch True Sch. 80 Alloy 625 Seamless or Welded Pipe N/A 0.593 in N/A 10 inches N/A 250 mm
A625-160-10000-10750 N/A 10 Inch True Sch. 160 Alloy 625 Seamless or Welded Pipe N/A 1.125 in N/A 10 inches N/A 250 mm
A625-10-12000-12750 N/A 12 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A 0.180 in N/A 12 inches N/A 300 mm
A625-40-12000-12750 N/A 12 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.406 in N/A 12 inches N/A 300 mm
A625-T40-12000-12750 N/A 12 Inch True Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.406 in N/A 12 inches N/A 300 mm
A625-80-12000-12750 N/A 12 Inch Sch. 80 Alloy 625 Seamless or Welded Pipe N/A 0.687 in N/A 12 inches N/A 300 mm
A625-10-14000-14000 N/A 14 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A 0.250 in N/A 14 inches N/A 350 mm
A625-40-14000-14000 N/A 14 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.437 in N/A 14 inches N/A 350 mm
A625-10-16000-16000 N/A 16 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A 0.250 in N/A 16 inches N/A 400 mm
A625-40-16000-16000 N/A 16 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.500 in N/A 16 inches N/A 400 mm
A625-40-18000-18000 N/A 18 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A 0.562 in N/A 18 inches N/A 450 mm
A625-10-375-675 N/A 3/8 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A 0.065 in N/A 3/8 inches N/A 10 mm
A625-160-500-840 N/A 1/2 Inch Sch. 160 Alloy 625 Seamless or Welded Pipe N/A 0.187 in N/A 1/2 inches N/A 15 mm
A625-DEH-500-840 N/A 1/2 Inch Sch. XXH Alloy 625 Seamless or Welded Pipe N/A 0.294 in N/A 1/2 inches N/A 15 mm
A625-160-750-1050 N/A 3/4 Inch Sch. 160 Alloy 625 Seamless or Welded Pipe N/A 0.218 in N/A 3/4 inches N/A 20 mm
A625-DEH-750-1050 N/A 3/4 Inch Sch. XXH Alloy 625 Seamless or Welded Pipe N/A 0.308 in N/A 3/4 inches N/A 20 mm
A625-5-000-1315 N/A 1 Inch Sch. 5 Alloy 625 Seamless or Welded Pipe N/A 0.065 in N/A 1 inches N/A 25 mm
A625-DEH-000-1315 N/A 1 Inch Sch. XXH Alloy 625 Seamless or Welded Pipe N/A 0.358 in N/A 1 inches N/A 25 mm
Unit of Measure
1 2 3 4